Wrench



(No'ModeI.)

M. E. GAMPFIELD.

WRENCH. No. 257,468. Patented May 9,1882...

lllllllllllllglim UNITED STATES PATENT OFFICE.

MATTHEW E. GAMPFIELD, OF CLEVELAND, OHIO.

WRENCH.

SPECIFICATION forming .part of Letters Patent No. 257,468, dated May 94,1882.

Application filed March Q9, 1882.

To all whom it may concern:

Be it known that I, MATTHEW E. CAMIL FIELD, of Cleveland, in the countyof Cuyahoga and State of Ohio, have invented certain new and usefulImprovements in IVrenches, of which the following is a specification.

This invention relates to improvements in wrenches; and it consists inthe peculiar con struction of the ferrule in one piece, which unites theshank of the wrench with the handle, and which also forms the socket forthe head of the adjusting-screw that operates the movable jaw.

In the accompanying drawings, Figure 1 is a side elevation. Fig. 2 is alongitudinal section.

A is the shank of the wrench, to which is attached the fixed jaw B, andupon which the movable jaw C slides.

D is a ferrule having a socket, d, to receive the end ot' the shank A,in which it is firmly attached by a rivet through them, or by having theend of the shank inserted through the partition-wall in the ferrule andheaded down. The said ferrule is also provided with a socket, d', intowhich a wooden handle, E, is secured by a rivet. The ferrule D is alsoprovided with a slotted projection, F, on the upper side, having oneslot, f, for the head g ot' the screw G,

and another, f', for the screw itself to revolve in, which operates themovable' jaw C. The front side of said slot forms the bearing in (Nomodel.)

which the screw G revolves. The movable jaw has a screw-threaded socket,c, in which the screw G works to move it back and forth. The head g issecured to ille screw by a rivet, or it may be secured by forcing itonto the screw tightly. In constructing these screwsI cut a longscrew-rod and then cut it up into pieces of sufiicient length for use.

The advantage of this ferrule is its firmness and solidity in attachingthe shank to the wooden handle. In the old method of making along-pointed shank and inserting it into the wood, it is liable tobecome loose or the handles are liable to split. This defect is entirelyovercome by my improved ferrule.

Having described my invention, I claim- 1. In a wrench ofthe kinddescribed, the head g, secured to the end ot' the screw G, incombination with the projection F, having the two slotsf and f', as andfor the purpose specified.

2. The improved ferrule D, having the sockets d and d', and theprojection F, and having the slotsf and f for the head g of theadjusting-screw G to revolve in, in combination with the shank A, handleE, and screw G of a. wrench, substantially as described.

Y lvIATTI-IEW E. UAMPFIELD.

Witnesses:

GEO. W. TIBBIT'rs, E. W. LAIRD.

